LC Server - Smart Interactive Fields?

[Rick Harrison]

I was wondering if anyone has come up with a way to create
 “Smart Interactive Fields” in LiveCode server without
having to use javascript?

For example:  The user types in a number in the wrong format
into a field and the field is smart enough to interactively tell the
user with a tool-tip or other pop-up instruction that says the
correct format is $999.99 or perhaps automatically corrects 
the problem for them.

Any ideas?

Thanks,

Rick